WO2016008638A2 - Appareil d'éclairage d'horticulture - Google Patents

Appareil d'éclairage d'horticulture Download PDF

Info

Publication number
WO2016008638A2
WO2016008638A2 PCT/EP2015/062485 EP2015062485W WO2016008638A2 WO 2016008638 A2 WO2016008638 A2 WO 2016008638A2 EP 2015062485 W EP2015062485 W EP 2015062485W WO 2016008638 A2 WO2016008638 A2 WO 2016008638A2
Authority
WO
WIPO (PCT)
Prior art keywords
steering
growth
controller
plant
modes
Prior art date
Application number
PCT/EP2015/062485
Other languages
English (en)
Other versions
WO2016008638A3 (fr
Inventor
Gabriel-Eugen Onac
Marcellinus Petrus Carolus Michael Krijn
Esther Maria Van Echtelt
Céline Catherine Sarah NICOLE
Original Assignee
Koninklijke Philips N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips N.V. filed Critical Koninklijke Philips N.V.
Priority to ES15727393T priority Critical patent/ES2893880T3/es
Priority to CN201580038765.7A priority patent/CN106714547B/zh
Priority to RU2017105032A priority patent/RU2696965C2/ru
Priority to DK15727393.9T priority patent/DK3169147T3/da
Priority to JP2017502581A priority patent/JP6637957B2/ja
Priority to US15/326,785 priority patent/US10806095B2/en
Priority to EP15727393.9A priority patent/EP3169147B1/fr
Publication of WO2016008638A2 publication Critical patent/WO2016008638A2/fr
Publication of WO2016008638A3 publication Critical patent/WO2016008638A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
    • A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/20—Forcing-frames; Lights, i.e. glass panels covering the forcing-frames
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/155—Coordinated control of two or more light sources
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

Definitions

  • the present disclosure relates to horticultural lighting apparatus for illuminating one or more plants to promote growth, and also to steer one or more other biological processes of the plants such as flowering or resistance against disease.
  • Plants use the process of photosynthesis to convert light, C0 2 and H 2 0 into carbohydrates (sugars). These sugars are used to fuel metabolic processes, and the excess of sugars are used for biomass formation. This biomass formation can include stem elongation, increase of leaf area, flowering, and/or fruit formation.
  • the photoreceptor responsible for photosynthesis is chlorophyll.
  • Photoperiodism refers to the ability that plants have to sense and measure the periodicity of radiation (e.g. to induce flowering).
  • Phototropism refers to the growth movement of the plant towards or away from the radiation.
  • Photomorphogenesis refers to a change in form in response to the quality and/or quantity of radiation.
  • Artificial lighting in greenhouses is currently used for promoting plant growth, but also to steer certain other processes in the plant development, such as inducing flowering.
  • the requirements for these two types of illuminations are different, in terms of both intensity and spectrum. Therefore artificial lighting can play a variety of roles in horticultural lighting, mainly falling into two groups: growth, and steering of other biological processes other than growth.
  • a growth light source is a light source that supplements or replaces the natural daylight, e.g. in greenhouses or growingfactories. It is used in order to increase production (of tomatoes for example), to enable crop growth without daylight in plant factories, and/or to extend crop production during the autumn, winter, and spring period when crop prices are higher.
  • a steering light source on the other hand is used to promote one or more other biological processes of the plant or plants. Examples are as follows.
  • Photoperiodic lighting exploits the fact the daily duration of light is important for many plants.
  • LED lamps may be used to extend day length to control flowering, or to induce other photoperiodic responses such as to break the winter dormancy of respiratory plants like chrysanthemums and strawberries.
  • the ratio of the light and dark period in a 24 hour cycle can influence the blossoming response in a number of plants, and manipulating this ratio by means of supplemental lighting enables regulating the time of blossoming and the morphology of the flower (such as thickness and length).
  • Certain doses of light can also increase a plant's resistance to disease.
  • Light spectrum also plays a role here.
  • Light spectrum can also influence the morphological development of the plant. For instance it has been proven that the amount and/or percentage of blue light is for a large part responsible for compact plant architectures (short internode distances and petioles) while far-red light has the opposite effect by inducing stem elongation and larger leaf areas.
  • pre-harvest steering light can be used to steer the nutrient content of a final product.
  • reduction of nitrate content in leafy vegetables can be obtained by applying high intensity, continuous lighting 48 hours prior harvest; an increases of anthocyanin (red coloration of salad) can be obtained by applying intense blue or UV light; and a short-term (3 days) pre-harvest treatment of microgreens with intense red light also increases the phytochemicals.
  • the main photosynthetic activity of a plant takes place within the wavelength range 400-700nm, peaking in the red (625-675nm) and blue (425-475nm) regions. Radiation within the 400-700nm range is called
  • PAR photosynthetically active radiation
  • light fluence is measured in the number of photons per second per unit area (e.g. in micromol/sec/m 2 , a mol corresponding to 6 x 10 23 photons).
  • the typical fluence used is 110 ⁇ /sec/m 2 with the ratio of blue:red close to 1 :7.
  • LEDs More recently, the advent of solid-state lighting based on LEDs has offered new opportunities for application in horticulture.
  • the main advantages of using LEDs result from the ability to tune the spectral composition of the light to closely match the plant's photoreceptors. Together with additional benefits like dimming capabilities, improved heat control and freedom of distributing the LEDs, this provides a more optimal plant growth and crop yield and enables influencing the plant's morphology and composition.
  • LEDs also promise reduced energy consumption (and associated cost reduction) compared to more conventional light sources such as gas discharge lamps or incandescent lamps. For instance, as well as their intrinsically higher efficiency, LEDs may also allow the light to be distributed closer to the target which can result in less light loss through the roof and floor of the greenhouse. Moreover, a better light distribution in the crop can be accomplished. This can be beneficial in a number of applications such as high-wire crops like tomatoes.
  • LEDs emit radiation within a narrow wavelength spectrum.
  • a typical LED may have an emission peak at 450 nm (blue), 660 nm (red), or 730 nm (far-red). It is also possible to create an LED that provides a broad white spectrum (400-75 Onm) by coating an LED of one colour with a material such as phosphor. Combinations of such LEDs can be used to create different spectra.
  • a number of horticultural LED lamps are already available on the market for professional commercial growers. To keep cost low these have their light spectrum and output fixed, tuned to match the requirements of either growth light if the lamp is a growth lamp or steering light of the lamp is a steering lamp.
  • the existing products on the market provide a light module with a fixed ratio of e.g. blue, red and far-red, where only the overall intensity (or even only on/off) is controllable.
  • Advantages of this are low cost and ease of use, but a disadvantage is that such lamps allow little in the way of controllability.
  • At the other end of the range there are research modules for individually controlling the intensity of e.g. blue, red and far-red.
  • An advantage of this is a high degree of controllability, but a disadvantage is high cost and complexity of use. It would be desirable to provide a more simple way of constructing and controlling a horticultural lamp that can be used to provide both growth and steering light, that maintains a degree of controllability while keeping the cost and complexity of light control low.
  • a horticultural lighting apparatus for illuminating a plant.
  • the apparatus comprises: a lighting module comprising multiple lighting elements (e.g. LEDs), wherein the lighting module is restricted to operating in only a plurality of discrete modes which emit light with different discrete spectral compositions by emitting light from the lighting elements in different predetermined combinations.
  • These modes comprise a growth mode configured with a spectrum that promotes growth of the plant, and at least one steering mode configured with a spectrum that steers another biological process of the plant (for example a photoperiodic process, a phototropic process, or photomorphogenic process; e.g. flowering, or resistance to disease).
  • the modes are modes of a given lighting module rather than properties of separate lighting modules
  • at least one of the lighting elements is common to each mode, being arranged to emit in both the growth and steering modes.
  • the apparatus further comprises a controller arranged to switch the lighting module between the plurality of discrete modes.
  • the disclosure thus provides a horticultural lighting apparatus (e.g. LED lamp) that combines growing and steering illumination modes in a simple and cost effective way, together with methods for controlling the light output of such a lamp based on factors such as the objective of the grower, stage of the day, and/or the status of the crop.
  • the disclosed horticulture module falls between the existing products that are available, providing a tradeoff between flexibility, cost, and simplicity for the user; having a dedicated light setting for evoking a dedicated effect on the plants in each of the modes.
  • Advantages may include a reduction in cost (fewer light modules and less heavy installation) and/or simpler operation (limited number of selectable, preconfigured modes, not requiring a recipe management system).
  • the different combinations may be formed by switching the lighting elements on and off in different predetermined patterns (e.g. see Figures 4 and 5). Alternatively or additionally, the different combinations may be formed by emitting light from the lighting elements with different predetermined combinations of intensities.
  • the controller may be configured to switch the lighting module between the grow mode and - the at least one steering mode at different respective phases of a daily cycle.
  • the controller may be configured to switch the lighting module to the growth mode during a daytime phase of the daily cycle, and to switch the lighting module to a night-time phase of the daily cycle.
  • the controller may be configured to determine the phase of the daily cycle according to a predetermined schedule.
  • the controller comprises one or more sensors, wherein the controller is configured to switch between the growth mode and the at least one steering mode based on the one or more sensors, and/or to control a duration of the at least one steering mode based on the one or more sensors.
  • the one or more sensors may comprise: a daylight sensor arranged to sense a light level of the daylight, the controller being configured to switch between the grow mode and the at least one steering mode based on the sensed light level, and/or to control a duration of the at least one steering mode based on the sensed light level; a daylight sensor arranged to sense a spectral composition of the daylight, the controller being configured to switch between the grow mode and the at least one steering mode based on the sensed spectral composition of the daylight, and/or to control a duration of the at least one steering mode based on the sensed spectral composition of the daylight; a humidity sensor, the controller being configured to switch between the grow mode and the at least one steering mode based on the sensed humidity, and/or to control a duration of the at least one steering mode based on the sensed humidity; a temperature sensor, the controller being configured to switch between the grow mode and the at least one steering mode based on the sensed temperature, and/or to control a duration of the at least one steering mode based on the
  • the one or more sensors may be at least one of the means by which the controller determines the phase of the daily cycle (either the only means, or used in addition to one or more other means such as the predetermined schedule, e.g. adapting the switching times of the schedule within allowed limits of the schedule based on the sensory input).
  • the controller may comprise a user interface (e.g. a switch or computer terminal), being configured to switch between the growth mode and the at least one steering mode based on a user input received through the user interface.
  • a user interface e.g. a switch or computer terminal
  • the lighting module may be restricted to having only a single available steering mode such that the apparatus is restricted to only two modes, growth or steering; or alternatively the lighting module may allow a small number of multiple discrete steering modes.
  • the controller may be configured to apply each of the multiple steering modes in a sequence at different respective times during the nighttime phase.
  • a horticultural grow lamp having a housing and comprising the apparatus of any of the disclosed embodiments (including at least the lighting module and controller) incorporated into said same housing.
  • a horticultural growing facility comprising: one or more plants, and a lighting module and controller in accordance with any of the embodiments disclosed herein, the lighting module being arranged to illuminate the one or more plants.
  • the horticultural growing facility may take the form of a greenhouse or plant growing factory in which the plants and lighting module are accommodated.
  • Fig. 1 is a schematic illustration of a horticultural growing facility
  • Fig. 2 is a schematic block diagram of a horticultural lighting apparatus
  • Fig. 3 is a schematic representation of a lighting module
  • Fig. 4 is a schematic representation of a lighting module in a growth mode
  • Fig. 5 is a schematic representation of a lighting module in a steering mode.
  • a light module comprising a controller for controlling a light module in at least two (exclusive) operating modes, of which one mode is for providing a grow light during a 'day' period in a 24 hour cycle and another mode is for providing a steering light during a 'night' period in a 24 hour cycle.
  • the steering light may be one of a flowering light, a disease reducing light and a morphology controlling light.
  • a user interface may provide the input for selecting one of the at least two modes.
  • intelligence is added to the controller of the lighting module to select between the modes in an automated or at least partially automated manner.
  • the control of the lighting module may also or alternatively be based on sensor data related to the environment (e.g. a daylight sensor, a time of day, plant/crop growth stage, relative humidity for assessing disease risk, etc.) wherein the controller switches between the different operating modes based on sensed environmental data. And/or as another example, the switching may be based on a timer according to a predetermined schedule preconfigured in the controller.
  • the lighting module may allow only a growth mode and a single steering mode. Alternatively multiple steering light modes may be applied during non- overlapping periods. In any of these modes, the light module may be controlled to provide continuous light or pulsed on/off light with light pulses of the order of minutes.
  • Figure 1 shows a horticultural growing facility 2 comprising a greenhouse 6 or plant growing factory.
  • the greenhouse or factory 6 contains one or more plants 4 (e.g.
  • the lighting apparatus 8 may be used to provide supplemental lighting to supplement daylight (e.g. in a greenhouse) or even to provide the only light instead of daylight (e.g. in an indoor growing factory). For instance in the example shown, two plants 4 or rows of plants are both illuminated from above by a top-lighting apparatus 8t, while each plant 4 or group of plants in a given row is alternatively or additionally illuminated by an inter- lighting apparatus 8i positioned amongst the plant or group of plants.
  • Figure 1 also shows an example layout for the hydroponic growth of tomatoes in greenhouses with a service path between rows of tomatoes, but it will be appreciated this is illustrative and by no means limiting to all scenarios to which the teachings herein may be applied.
  • Figure 2 gives a block diagram of a horticultural growing apparatus 8 in accordance with embodiments disclosed herein, e.g. as may be used to implement instances of the top-lighting 8t or inter-lighting 8i.
  • the horticultural lighting apparatus 8 comprises a lighting module 10 comprising multiple lighting elements 12 (e.g. LEDs), and a controller 14 connected to control the lighting module 10 to switch between modes.
  • the controller 14 comprises one or more of: a user interface (UI) 16, one or more sensors 18, and/or a timer 20.
  • UI user interface
  • the lighting module 10 and the controller 14 may be integrated together into the housing of a horticultural grow lamp.
  • some or all of the controller 14 may be implemented in a separate unit, such as a computer terminal, connected to the lighting module 10 via a wired or wireless connection.
  • FIGS 3, 4 and 5 schematically illustrate an example of the lighting module 10, e.g. as might be used in the top-lighting 8t or other horticultural lighting apparatus.
  • the lighting module comprises the plurality of lighting elements 12 each of which in preferred embodiments is a respective LED (and will be described as such in the following, although it will be understood that more generally they could be other types of lighting element).
  • Each LED 12 is designed to emit with a given colour, with the different LEDs 12 being of at least two different colours; i.e. some of the LEDs 12 are of one colour, others of the LEDs 12 are of another colour, and (if more than two colours of LED are used) yet others of the LEDs 12 are of yet another colour and so forth.
  • some of the LEDs 12 are blue LEDs 12B (emission peak at 400-500nm, e.g. 450 nm); some are red LEDs 12R (emission peak at 600-700nm, e.g. 660 nm), and some are far-red LEDs 12FR (emission peak at 700-800nm, e.g. 740nm).
  • the LEDs 12 may be arranged in a two dimensional array, e.g. in a rectangular grid as in the illustrated example, or in some other formation; so long as the light emitted by the different colours of LED 12, as incident on the one or more plants, will blend to at least some extent.
  • the LEDs may be arranged in a 7x6 grid with the colours shown in Figures 3-5 (though not necessarily to scale), but it will be appreciated this is an example and need not be limiting to all possible embodiments.
  • the LEDs 12 are arranged into two groups for providing light in two different modes: growth and steering. At least one LED 12 or a sub-group of the LEDs 12 with similar spectrum belongs to both groups and is used in common (both modes). The relative contribution of at least one group of LEDs 12 to the total output is different in the two modes (different spectral composition).
  • the growth mode is characterized by a relatively high light fluence (e.g. 100-200 with a large contribution of this in the red part of the spectrum (e.g.70%-90%).
  • the light emitted in the steering mode on the other hand is configured with a different spectrum than the growth mode (and in embodiments also a different intensity) in order to promote a different biological process of the plant 4 other than growth.
  • the intensity of the steering light may be relatively low (e.g. 0-50 and the spectral composition is dependent on the effect the grower wants to achieve, e.g. such as one or more of the effects discussed previously.
  • the light spectrum and/or intensity in the growth mode and/or steering mode may also be dependent on the type of crop or plant it is designed for, i.e. configured for a particular plant or crop type.
  • Pulse width modulation may be used to dim the different light channels (different colours).
  • the steering light may be offered in continuous mode or in a pulsed mode with pulses at larger time intervals (e.g. 1-60 minutes) depending on the effect desired and the underlying triggering mechanisms.
  • Figure 3 shows the lighting module 10 when turned off (none of its LEDs 12 on, i.e. none emitting).
  • Figure 4 shows the lighting module in an example of a growth mode, whereby a first group of the LEDs 12 are turned on (emitting) and the rest are off (not emitting). In the example shown the growth mode is configured such that all the blue LEDs 12B and red LEDs 12R are on but all the far-red LEDs 12FR are off.
  • Figure 5 shows the lighting module in an example of a steering mode, whereby a second group of the LEDs 12 are turned on (emitting) and the rest are off (not emitting).
  • the steering mode is configured such that all the red LEDs 12R and far-red LEDs 12FR are on, while all the blue LEDs 12B are off. Note that some but not all of the LEDs of the first group (on in growth mode) are common to the second group (on in steering mode).
  • the controller 14 is configured to control the lighting module 12 to switch between the growth and steering modes.
  • the controller 14 may take a number of possible forms.
  • the controller 14 takes the form of a digital control module 15 connected to control the mode of the lighting module 10, plus an associated UI 16, sensors(s) 18 and/or timer 20 connected via a wired or wireless connection to provide an input to the control module 15; the control module 15 being configured to control the lighting module 10 to switch between the growth and steering modes based on the input or inputs it receives from the UI 16, sensor(s) and/or timer 20.
  • the digital control module 15 may be implemented as a portion of software code stored on a memory of the controller 14 and arranged to be executed on one or more processors of the controller 14.
  • the controller 14 may comprise a computer terminal such as a desktop or laptop computer, tablet or smart phone upon which the control module 15 is installed and executed; or the controller may comprise a memory and application specific microprocessor of a dedicated control unit, e.g. embedded in a horticultural grow lamp.
  • the digital control module may be wholly or partially implemented in dedicated hardwired circuitry, and/or in configurable or reconfigurable circuitry such as a PGA or FPGA.
  • the timer 20 may take the form of a general purpose clock or other timer of the processor plus associated software, or alternatively may take the form of a separate timer peripheral.
  • control module 15 is an automated control module configured to automatically switch between the growth and steering modes based on one or more of: time of day, crop growth stage (measured or pre-set as a function of growth period), day length (inferred from calendar date or from sensor readings), spectral composition of the daylight (e.g. sensor readings of red/far red ratio or PSS value), and/or one or more sensor readings (e.g. relative humidity and/or temperature for assessing disease risk).
  • time of day crop growth stage (measured or pre-set as a function of growth period)
  • day length inferred from calendar date or from sensor readings
  • spectral composition of the daylight e.g. sensor readings of red/far red ratio or PSS value
  • one or more sensor readings e.g. relative humidity and/or temperature for assessing disease risk.
  • control module 15 automatically switches the steering light on (with or without a time delay) after the growth light has been switched off.
  • the lighting module 10 has only two modes: a growth mode and one steering mode.
  • the lighting module may allow a small number of different steering modes (but in embodiments still only a single growth mode).
  • the lighting module 10 may be switched between various functions for the steering light; e.g. modes having different light intensity and/or spectra for flowering, disease resistance, and/or morphology steering.
  • the lighting module 10 has only two or fewer steering modes, only three or fewer steering modes, only four or fewer steering modes, only five or fewer steering modes, or only ten or fewer steering modes.
  • the modes are discrete modes of the lighting module 10, in that the lighting module 10 is constricted to operating only in a small number of modes (corresponding to a small number of respective combinations of the LEDs 12) that is substantially smaller than if the spectrum and/or light intensity could be set to any arbitrary value (based on any possible on-off and/or brightness settings of the LEDs 12). So the number of modes is substantially smaller than the number of possible combinations in which the LEDs 12 of the lighting module can be turned on and off, e.g. at least a factor of ten smaller, at least a factor of one-hundred smaller, at least a factor of one-thousand smaller, or at least a factor of ten-thousand smaller, etc.
  • this restriction to a small number of discrete modes is an intrinsic, hardwired property of the lighting module 10 itself.
  • the lighting module 10 may comprise two control wires via which the controller 14 is connected to switch the module 10 between the growth and steering light based on an applied control voltage, e.g. a voltage difference between the two wires (and of these two control wires, one wire can be in common with the wires providing the power).
  • the restriction may be enforced by the controller 14.
  • the controller 14 comprises the digital control module 15 and timer 20, and is configured to control the switching between the growth mode and the one or more steering modes according to a predetermined schedule (by timing the current time using the timer and comparing the current time to the schedule).
  • the controller 14 also comprises a user interface (UI) 16 and the schedule can be programmed by a user via the UI 16.
  • UI 16 user interface
  • the controller 14 may take the form of a computer terminal on which the control module 15 is implemented, and the UI 16 may comprise a display and input means (e.g. mouse, keyboard and/or touch screen) of this computer terminal.
  • control module 15 may be pre-programmed with the schedule by a manufacturer, supplier or commissioning technician.
  • the schedule may comprise a daily schedule, and/or a schedule varying over a longer period such as a weekly, monthly and/or yearly calendar (e.g. so the daily schedule varies over a number of days, weeks, months or years).
  • the schedule comprises at least a daily schedule, whereby the control module 15 switches the lighting apparatus 10 between the different modes at different times of a 24 hour daily cycle.
  • the growth mode is preferably used to supplement daylight (during the day and/or at night); while the steering mode may mainly be used during the night or at the end of the day, when the contribution from the daylight becomes very limited.
  • the lighting module is used to promote growth during the day, and promote one or more other biological processes such as flowering or disease resistance during the night.
  • the daily schedule may comprise switching between the different steering modes at different times of night; e.g. switching from flowering mode to disease-resistance mode part way through the night, or alternating between the two modes over the course of the night.
  • the schedule may vary the switching behaviour over a course longer than a single day.
  • the length of time for which the growth mode is applied during the day, and/or the length of time for which the steering mode(s) is (or are) applied during the night may be scheduled to vary day-by-day, week-by-week, or month-by-month depending on the crop growth stage, current day-length and/or season as inferred from the current calendar date.
  • the controller 14 comprises the digital control module 15 and one or more sensors 18, and is configured to control the switching between the growth mode and the one or more steering modes based on the respective input or inputs from the one or more sensors 18.
  • the sensor(s) 18 may comprises a daylight sensor arranged to measure the current amount of daylight experienced in the facility 2, a daylight sensor arranged to measure the current spectral composition of the daylight experienced in the facility 2 (this may use the same or a different photocell), a humidity sensor arranged to measure the current humidity in the facility 2, and/or a temperature sensor arranged to measure the current temperature in the facility 2.
  • the one or more sensors are placed in suitable vicinity of the plant or plants 4 in question so as to approximate the conditions (e.g. light and/or humidity) experienced by those one or more plants 4.
  • control module 15 may be configured to infer the current day length and/or crop growth stage based on the sensed daylight level and/or spectrum, and/or the sensed humidity, and may switch between the modes based on this.
  • the control module 15 may infer the day length based on one or more sensors 8, and trigger the growth mode to be applied during the inferred day time and the one or more steering modes to be applied during the inferred night time.
  • the control module 15 may infer the current crop growth stage or season based on one or more sensors 18, and may vary the length of time the growth mode and/or steering mode(s) is (or are) applied for depending on the inferred growth stage or season.
  • a current disease risk may be correlated with the humidity and/or temperature experienced by the plant(s) 4, and the control module 15 may be configured to activate the disease-resistance steering mode (or change the length of this mode) in response to sensing a certain level of humidity or temperature or certain
  • a dedicated plant health sensor can be used to sense one or more aspects of the plant's health, such as to provide an early indication of disease.
  • the plant health sensor may comprise a plant growth performance sensor for taking photosynthesis
  • growth measurements such as a Chlorophyll Fluorescence sensor such as an Allied Vision AVT camera.
  • Chlorophyll fluorescence measurements can be used as an early, indirect indication for diseases.
  • the growth may also be inhibited by other factors (e.g. water stress).
  • a plant morphology sensors e.g. Phenospex PlantEye
  • Phenospex PlantEye can be used to sense one or more aspects of the plant's morphology, such as the growth stage of the crop.
  • the selection and/or the duration of a particular steering mode may be based on one or more sensed values from any one or more of the sensors described above, or others.
  • the daylight sensor may be arranged to determine the switching on/off of the growth mode
  • another one or more sensors such as the humidity sensor and/or temperature sensor may be arranged to determine the selection and/or duration of an antifungal steering mode from amongst multiple steering modes.
  • a particular steering mode may not be selected if it is not relevant based on the sensed value(s).
  • the switching between modes may be based solely on the sensor input(s), or may be combined with the first embodiment to adapt the schedule based on empirical data from the sensor(s).
  • the control module 15 may determine the current day length based on a calendar, so that the growth mode is applied during the day and at least one steering mode is applied during the night, but may also adapt the exact switching time within a predetermined range of the scheduled time based on the sensed humidity and/or daylight spectrum.
  • the controller 14 comprises a user interface (UI) 16 and is configured to switch between the growth mode and the steering mode(s) based on a manual user selection received through the UI 16.
  • UI user interface
  • the UI may comprise a remote control able to control the switching via a control module 15; or the user interface may comprise an input device such as a keyboard, mouse and/or touchscreen of a computer terminal in which the control module 15 is implemented.
  • the UI 16 may comprise just a dedicated switch (e.g. a mechanical switch) for switching between the modes. In this case the control module 15 is not necessarily needed and the controller 14 may just consists of the switch 16 connected directly to the control wires of the lighting module 10.
  • the user uses the UI 16 only to turn on and off the growth mode
  • the control module 15 is configured to automatically switch on the steering mode (or a sequence of steering modes) for a predetermined time after the user has switched off the growth mode.
  • the control module 15 may switch on a red disease-resistance lighting mode for a period such as 2 hours after the user has switched off the growth mode.
  • the growth mode and steering mode(s) do not necessarily have to be contiguous. E.g. there could be a period of no lighting (at least not from the lighting module 10) between the end of growth mode and the start of the steering mode(s), and/or between the end of the steering mode(s) and the start of the next application of the growth mode, and/or between different steering modes.
  • a computer program may be stored/distributed on a suitable medium, such as an optical storage medium or a solid-state medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems. Any reference signs in the claims should not be construed as limiting the scope.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Cultivation Of Plants (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Greenhouses (AREA)
  • Hydroponics (AREA)

Abstract

L'invention concerne un appareil d'éclairage d'horticulture destiné à éclairer une plante, ledit appareil comprenant un module d'éclairage ayant de multiples éléments d'éclairage. Le module d'éclairage est limité de sorte à fonctionner dans une pluralité de modes distincts qui émettent de la lumière avec différentes compositions spectrales distinctes, par émission de la lumière provenant des éléments d'éclairage dans différentes combinaisons prédéterminées. Ces modes comprennent un mode de croissance configuré avec un spectre qui favorise la croissance de la plante, et au moins un mode de direction configuré avec un spectre qui dirige un autre processus biologique de la plante, au moins l'un des éléments d'éclairage étant agencé de sorte à émettre à la fois dans le mode de croissance et dans le mode de direction. L'appareil comprend en outre un dispositif de commande agencé de sorte à commuter le module d'éclairage entre la pluralité de modes distincts.
PCT/EP2015/062485 2014-07-17 2015-06-04 Appareil d'éclairage d'horticulture WO2016008638A2 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES15727393T ES2893880T3 (es) 2014-07-17 2015-06-04 Aparato y procedimiento de iluminación hortícola
CN201580038765.7A CN106714547B (zh) 2014-07-17 2015-06-04 园艺照明装置
RU2017105032A RU2696965C2 (ru) 2014-07-17 2015-06-04 Садоводческое осветительное устройство
DK15727393.9T DK3169147T3 (da) 2014-07-17 2015-06-04 Gartneribelysningsapparat og fremgangsmåde
JP2017502581A JP6637957B2 (ja) 2014-07-17 2015-06-04 栽培用照明装置
US15/326,785 US10806095B2 (en) 2014-07-17 2015-06-04 Horticultural lighting apparatus
EP15727393.9A EP3169147B1 (fr) 2014-07-17 2015-06-04 Dispositif et procédé d'éclairage d'horticulture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14177493 2014-07-17
EP14177493.5 2014-07-17

Publications (2)

Publication Number Publication Date
WO2016008638A2 true WO2016008638A2 (fr) 2016-01-21
WO2016008638A3 WO2016008638A3 (fr) 2016-04-28

Family

ID=51211090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/062485 WO2016008638A2 (fr) 2014-07-17 2015-06-04 Appareil d'éclairage d'horticulture

Country Status (8)

Country Link
US (1) US10806095B2 (fr)
EP (1) EP3169147B1 (fr)
JP (1) JP6637957B2 (fr)
CN (1) CN106714547B (fr)
DK (1) DK3169147T3 (fr)
ES (1) ES2893880T3 (fr)
RU (1) RU2696965C2 (fr)
WO (1) WO2016008638A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019228838A1 (fr) * 2018-05-31 2019-12-05 Signify Holding B.V. Dispositif d'éclairage horticole permettant d'entretenir la croissance d'une plante d'intérieur, et système et procédé d'éclairage horticole correspondants

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016033350A1 (fr) * 2014-08-29 2016-03-03 Xiant Technologies, Inc. Système de gestion de modulation de photons
JP6611036B2 (ja) * 2015-09-10 2019-11-27 パナソニックＩｐマネジメント株式会社 発光装置及び照明用光源
JP6761970B2 (ja) * 2016-08-18 2020-09-30 パナソニックＩｐマネジメント株式会社 病害虫防除装置
US20180220592A1 (en) * 2017-02-03 2018-08-09 Argia Group Llc Method and system for plant growth lighting
US11058889B1 (en) 2017-04-03 2021-07-13 Xiant Technologies, Inc. Method of using photon modulation for regulation of hormones in mammals
US10314243B2 (en) * 2017-09-21 2019-06-11 Osram Sylvania Inc. Horticultural light module assembly
US20190191643A1 (en) * 2017-12-22 2019-06-27 Aspara Limited Apparatus, a system, a method and a light control device for facilitating hydroponic cultivation
JP7097041B2 (ja) * 2018-05-23 2022-07-07 株式会社四国総合研究所 光照射システム及び光照射方法
WO2019241340A1 (fr) * 2018-06-12 2019-12-19 Current Lighting Solutions, Llc Gestion intégrée d'environnements régulés sensibles et éléments qui y sont contenus
US20200000043A1 (en) * 2018-06-29 2020-01-02 Thrive Agritech Under canopy electromagnetic radiation device
CN110495318B (zh) * 2019-09-25 2021-07-20 福建省中科生物股份有限公司 一种调控植物生殖发育的光照方法
WO2021263154A1 (fr) * 2020-06-26 2021-12-30 Gardyn Inc. Mode de conservation pour système de culture de plantes
WO2022061463A1 (fr) * 2020-09-25 2022-03-31 G2V Optics Inc. Système de régulation d'éclairage et procédés de modulation du comportement d'une plante
EP4014717A1 (fr) 2020-12-17 2022-06-22 C-Led S.R.L. Procede et appareil pour inhibiter la croissance de hyphes fongiques dans cultures sans sol

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT350832B (de) * 1977-05-12 1979-06-25 Ruthner Othmar Anlage zur verbesserung der speicherung biochemischer energie durch die nutzung der sonnenenergie und/oder sonstiger elektro- magnetischer strahlungsenergie in pflanzen
JPH10178899A (ja) * 1996-12-20 1998-07-07 Matsushita Electric Ind Co Ltd 植物栽培装置及びそれを用いた栽培方法及びそれを記録した記録媒体
JP4684444B2 (ja) * 2001-03-22 2011-05-18 浜松ホトニクス株式会社 人工光を用いたアブラナ科植物の花芽分化促進装置および花芽分化促進方法
US20100039804A1 (en) 2006-12-20 2010-02-18 Koninklijke Philips Electronics N.V. Illuminating device
EP2129212B1 (fr) * 2007-03-23 2016-01-06 Heliospectra Aktiebolag Système pour moduler la croissance de végétaux ou des attributs de végétaux
JP2009136155A (ja) 2007-12-03 2009-06-25 Nikkiso Co Ltd 植物の短日処理方法および植物栽培における光照射装置
US8297782B2 (en) * 2008-07-24 2012-10-30 Bafetti Vincent H Lighting system for growing plants
WO2010010540A1 (fr) 2008-07-25 2010-01-28 Jeffery Bucove Appareil et procédé pour la manipulation du métabolisme de végétaux à l’aide d’une puissance spectrale
US20100277078A1 (en) 2009-05-04 2010-11-04 Fertile Earth Systems, Inc. Plant lighting system
US20120020071A1 (en) 2010-07-22 2012-01-26 Cammie Mckenzie High performance led grow light
JP2012070727A (ja) * 2010-09-03 2012-04-12 Hamamatsu Photonics Kk トマト果実中の単位乾燥重量あたりの栄養成分含量を上昇させる方法
US20120170264A1 (en) * 2011-01-03 2012-07-05 Cammie Mckenzie Omnispectrum led grow light
CN202165912U (zh) 2011-01-19 2012-03-14 深圳市佰晟光电科技有限公司 一种生物设施培育led灯具
JP2012165665A (ja) * 2011-02-10 2012-09-06 Sharp Corp 照明装置、イチゴ栽培システムおよびイチゴ栽培方法
US9137874B2 (en) * 2011-12-02 2015-09-15 Biological Illumination, Llc Illumination and grow light system and associated methods
CN102635797B (zh) * 2012-03-30 2013-09-25 浙江农林大学 多功能大功率led组合灯
KR20170110171A (ko) * 2012-04-05 2017-10-10 나노코 테크놀로지스 리미티드 광합성 유기체의 성장을 향상시키는 양자점 발광다이오드
CN202551795U (zh) 2012-05-18 2012-11-28 黄水桥 Led农牧助长灯
CN202647292U (zh) 2012-05-30 2013-01-02 彩虹奥特姆（湖北）光电有限公司 一种led植物补光灯
US9101175B2 (en) * 2012-06-28 2015-08-11 Revision Military S.A.R.L. Helmet configured for electronics
CN104519733B (zh) * 2012-07-10 2020-02-21 万斯创新公司 适用于植物光谱敏感性的光源
EP2874488A2 (fr) * 2012-07-18 2015-05-27 Koninklijke Philips N.V. Procédé de fourniture de lumière d'horticulture sur une culture et dispositif d'éclairage pour éclairage d'horticulture
EP2910090B1 (fr) * 2012-10-11 2019-01-23 Philips Lighting Holding B.V. Étalonnage d'un capteur de lumière
US9282698B2 (en) * 2012-11-27 2016-03-15 James H. Beyer Light emitting diode grow light for plant growing applications
US20150313092A1 (en) * 2012-12-20 2015-11-05 Heliospectra Ab Method and illumination system for plant recovery from stress
MX368860B (es) * 2013-03-15 2019-10-18 Monsanto Technology Llc Metodo para rendimiento de semilla mejorado.
NL1040116C2 (en) * 2013-03-22 2014-09-24 Next Generation Energy Solutions B V Illumination device for stimulating plant growth.
JP6268516B2 (ja) * 2013-11-13 2018-01-31 パナソニックＩｐマネジメント株式会社 作物育成システム
US9907148B2 (en) * 2014-03-10 2018-02-27 Dynotron, Inc. LED lighting system having at least one heat sink and a power adjustment module for modifying current flowing through the LEDs
US10021766B2 (en) * 2014-04-08 2018-07-10 Nxp B.V. Controller for a horticultural lighting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019228838A1 (fr) * 2018-05-31 2019-12-05 Signify Holding B.V. Dispositif d'éclairage horticole permettant d'entretenir la croissance d'une plante d'intérieur, et système et procédé d'éclairage horticole correspondants
US11744190B2 (en) 2018-05-31 2023-09-05 Signify Holding B.V. Horticultural lighting device for sustaining indoor plant growth as well as corresponding horticultural lighting system and method

Also Published As

Publication number Publication date
WO2016008638A3 (fr) 2016-04-28
US10806095B2 (en) 2020-10-20
EP3169147B1 (fr) 2021-08-11
DK3169147T3 (da) 2021-10-11
JP6637957B2 (ja) 2020-01-29
RU2017105032A3 (fr) 2018-12-12
EP3169147A2 (fr) 2017-05-24
JP2017520269A (ja) 2017-07-27
RU2696965C2 (ru) 2019-08-07
CN106714547A (zh) 2017-05-24
US20170202157A1 (en) 2017-07-20
CN106714547B (zh) 2020-12-18
ES2893880T3 (es) 2022-02-10
RU2017105032A (ru) 2018-08-17

Similar Documents

Publication Publication Date Title
EP3169147B1 (fr) Dispositif et procédé d'éclairage d'horticulture
JP6430959B2 (ja) 少なくとも一つの照明システムをインターフェースするための園芸照明インターフェース
EP2338326B1 (fr) Système d'éclairage pour la prévention d'un dommage causé par une maladie végétale
TWI459895B (zh) 植物育成照明裝置
US8738160B2 (en) Apparatus and method for plant metabolism manipulation using spectral output
US20150128489A1 (en) Plant growing system
JP2010511402A (ja) 温室のための制御装置
EP3003009A1 (fr) Recette de lumière dynamique d'horticulture
KR102285707B1 (ko) 식물 재배용 광원을 이용한 식물 재배 장치 및 식물 재배 방법
WO2013027198A1 (fr) Système de signalisation lumineux destiné à influencer le comportement des plantes
RU2454066C2 (ru) Светодиодный фитооблучатель
ES2969610T3 (es) Interfaz de usuario dinámica
WO2012102372A1 (fr) Procédé de culture de plante et dispositif de culture de plante
US20230128621A1 (en) Red and far-red light ratio during growth of basil
US20100301990A1 (en) Appartus and method for affecting change in a target using an integrated lighting system
Pascua et al. Evaluation of light bulbs and the use of foliar fertilizer during off-season production of dragon fruit
WO2024102071A2 (fr) Système et procédé de contrôle de la croissance d'une plante
WO2023217684A1 (fr) Régulation de nouaison de poivrons par adaptation dynamique du spectre d'éclairage à del
Albot Impact of a shift in the light spectrum on lettuce growth. Simulation of sunrise/sunset using adjustable monochromatic LED lights
KR101176724B1 (ko) 전조재배용 조명장치
WO2024023053A1 (fr) Procédé et système d'éclairage de plantes avec de la lumière artificielle

Legal Events

Date Code Title Description
REEP Request for entry into the european phase

Ref document number: 2015727393

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015727393

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2017502581

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 15326785

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15727393

Country of ref document: EP

Kind code of ref document: A2

ENP Entry into the national phase

Ref document number: 2017105032

Country of ref document: RU

Kind code of ref document: A